Omega UXLR50-Series Owner's manual

Category
Measuring, testing & control
Type
Owner's manual

This manual is also suitable for

U-Series Ultrasonic Sensors
Ultrasonic Distance Sensors
2
U-Series Ultrasonic Sensors Installation & Operating Instructions
Servicing North America:
Omega Engineering, Inc.
800 Connecticut Ave, Suite 5N01, Norwalk, CT 06854
Toll-Free: 1-800-826-6342 (USA & Canada only)
Customer Service: 1-800-622-2378 (USA & Canada only)
Engineering Service: 1-800-872-9436 (USA & Canada only)
Tel: (203) 359-1660
Fax: (203) 359-7700
For Other Locations Visit omega.com/worldwide
U.S.A.
Headquarters:
The information contained in this document is believed to be correct, but OMEGA accepts no liability for any errors it contains, and
reserves the right to alter specifications without notice.
3
U-Series Ultrasonic Sensors Installation & Operating Instructions
Product Declarations
Related Products
OmegaVIEW for Windows
A setup tool for U-Series ultrasonic sensors series sensors, this software installs on a PC and is used to configure
sensor options, select and calibrate outputs, view and analyze measurements, and save the result to a PC hard
drive. Recalled configurations can restore or duplicate an application without recalibration. View, chart, log, and
analyze sensor operation. Sensor firmware upgrades can be done easily through OmegaVIEW too. Download
OmegaVIEW at no charge from: omega.com/en-us/ftp
and search by model.
Setup Kits
Used for bench viewing or configuring sensors, kits include power supply, terminal board, and cables to
interconnect with your PC.
CE Compliance
U-Series ultrasonic sensors family of ultrasonic sensors are compliant with the CE Electromagnetic Compatibility
Directives and Standards listed below:
Directives: Electromagnetic Compatibility (2004/108/EC)
Low-Voltage (2006/95/EC)
Standards: EMC: EN 61326-1:2006 Industrial
Safety: EN 61010-1:2001
4
U-Series Ultrasonic Sensors Installation & Operating Instructions
Table of Contents
PRODUCT DECLARATIONS ........................ 2
Document RevisionsError! Bookmark not defined.
Related Products _________________________ 3
CE Compliance __________________________ 3
Table of Contents _________________________ 4
Terminology _____________________________ 5
ULTRASONICS OVERVIEW ........................................ 6
Introduction ______________________________ 6
Advantages _____________________________ 6
Typical Applications _______________________ 6
SENSOR OVERVIEW ................................................... 7
U-Series Ultrasonic sensor Product Features ___ 7
Startup Tips _____________________________ 8
Specifications ____________________________ 9
Mechanical Details _______________________ 13
Mounting and Installation __________________ 13
Rear Features __________________________ 14
Target Indicator _________________________ 15
Output Status Indicators ___________________ 16
INTERFACES ............................................................. 18
Wires Identification _______________________ 18
U-Series 3 &14 Output Selection ____________ 19
Analog Outputs __________________________ 20
Serial Data Interface ______________________ 26
Serial Parameters ________________________ 27
Serial Data Protocols _____________________ 29
OPERATION ............................................................... 31
Power Up ______________________________ 31
Measurement Activation ___________________ 31
Synchronization _________________________ 33
Operating Range ________________________ 34
Measurement Process ____________________ 34
Sensor Viewing _________________________ 35
Measurement Rate _______________________
37
Output Response Time ___________________ 37
Filters _________________________________ 38
Time Delays ____________________________ 41
Temperature Compensation ________________ 41
OMEGAVIEW SOFTWARE ........................................ 44
Install OmegaVIEW ______________________ 44
Application Setups _______________________ 44
Connect a Sensor ________________________ 45
Outputs & Indicators ______________________ 46
Sensor Adjustment _______________________ 49
TEACH ADJUST ......................................................... 50
APPENDIX A LIST OF ADJUSTABLE FEATURES 53
Warranty ………………………………………………….57
LIST OF FIGURES
Figure 1 - Part Number Structure .................................. 7
Figure 2 - Mechanical Drawing, U-Series ultrasonic
sensors 3, 14 metric thread ......................................... 13
Figure 3 - Mechanical Drawing, U-Series ultrasonic
sensors 30, 50, and 50P ............................................... 13
Figure 4 - Sensor Orientation ...................................... 13
Figure 5 - Mounting ..................................................... 14
Figure 6 - Sensor Rear Features ................................... 14
Figure 7 - Target Indicator Functions .......................... 15
Figure 8 - Output Status Indicator Operations ............ 17
Figure 9 - RS-232 PC COM Port Connections ............... 19
Figure 10 - Voltage Output Wiring .............................. 20
Figure 11 - Sourcing Current Loop Wiring ................... 20
Figure 12 - Sinking Current Loop Wiring ...................... 21
Figure 13 - OmegaVIEW Analog Adjustments ............. 23
Figure 14 - Sinking Switch Output Wiring .................... 23
Figure 15 - Sourcing Switch Output Wiring ................. 24
Figure 16 - Switch Hysteresis & Window Modes ......... 25
Figure 17 - OmegaVIEW Switch Adjustment ............... 25
Figure 18 - RS-232 PC COM Port Connections ............. 26
Figure 19 - RS-232 Connections ................................... 27
Figure 20 - Serial-485 Connections .............................. 27
Figure 21 - RS-485 Network Wiring ............................. 27
Figure 22 - Measurement Activation Selections .......... 32
Figure 23 - OmegaVIEW Polling Controls .................... 32
Figure 24 - SYNC Wiring .............................................. 33
Figure 25 - SYNC Phases and Timing ........................... 33
Figure 26 - Measurement Process Diagram ................ 34
Figure 27 - OmegaVIEW Distance Displays ................. 35
Figure 28 - Filters Block Diagram ................................ 38
LIST OF TABLES
Table 1 - Wire Assignments ____________________ 18
Table 2 - Measurement Activation Summary ______ 31
Table 3 - Maximum Range vs. Measure Rate ______ 37
Table 4 - Filter Response Time __________________ 40
Table 5 - Pushbutton TEACH Features List _________ 52
5
U-Series Ultrasonic Sensors Installation & Operating Instructions
Terminology
Terms listed here are shown in italics throughout this document.
An asterisk (*) indicates a OmegaVIEW configurable parameter.
Analog An electrical output type that varies in proportion to
measured distance. Analog output types can be either
current loop or voltage.
Analog High Value* The maximum (highest) value of an analog
output. For example, the Analog High Value for a 4-20 mA
current loop analog output is 20 mA. Computer
configurable models allow this value to be user-entered.
Analog Low Value* The minimum (lowest) value of an analog
output. For example, the Analog Low Limit value for a 0-10
VDC voltage output is 0 volts. Computer configurable
models allow this value to be user-entered.
Analog Window* A range of distances between two endpoints,
within which the analog output will vary between the
analog low value and analog high value proportional to
measured distance.
Current Loop Output* An analog output type that drives an
electrical current proportional to measured distance. U-
Series ultrasonic sensors provide 4-20 mA or OmegaVIEW
customized output ranges in sourcing or sinking current.
Dead band The small distance near the sensor face within
which distance cannot be measured. See also Range MIN.
Endpoint* One of two end distances representing the outer
limits of the analog window.
Hysteresis* The distance between a switch’s Setpoint and OFF
Distance. It reverses direction about the Setpoint if the
Polarity is reversed.
Ingress Rating An enclosure rating that identifies how
susceptible a product is to the entry (ingress) of external
objects or liquids.
Measurement Rate* The repetitive rate that the sensor
measures distance (see response time).
Measurement Interval* The time between measurements [1 /
Measurement Rate].
Measurement Process* The measurement, filtering and time
delays that affect sensor outputs (p 34).
Maximum Range The maximum target detection distance of a
sensor model; may be overridden by Range MAX (p 34).
Near MIN A distance extending 0.25 in. farther than Range MIN
within which the Target Indicator will flash as a warning.
Operating Range* The range of distances between the range
MIN and range MAX values (p 34).
Optimum Range The range of target distances recommended
for optimum performance in varying environmental
conditions.
Output Status Indicator An indicator at the rear of U-Series
ultrasonic sensors 3,, and 14 that shows the status of an
analog, switch or serial data output. There is a separate
output status indicator for output #1 (black wire) and
output #2 (white wire).
Polarity* The behavior of a switch output at its setpoint, defined
as “on-closer” or “on farther”. A switch turns OFF in the
reverse direction after the Hysteresis distance.
Range MAX* The farthest distance of the Operating Range;
user adjustable in OmegaVIEW.
Range MIN* The nearest distance of the Operating Range; a
target is not detected closer than the greater of Range MIN
or the Dead band.
RS-232* An electrical interface standard used to transfer
information using serial data communications. This is a
single ended interface with a specified maximum range of
50 feet (15 meters) that typically supports one device.
RS-485* An electrical interface standard used to transfer
information using serial data communications. This is a
long-distance differential interface capable of supporting
multiple addressable devices.
Response Time* The time required for sensor outputs to
respond to measurements; affected by measurement rate
and filter selections.
Serial Data Distance data output over the serial interface as
opposed to the analog or switch lines
Setpoint* The distance a switch output turns ON. (see also OFF
distance, polarity and Hysteresis)
Sinking Switch* A switch where current flows into the sensor to
ground from an externally sourced load when turned ON
(output voltage low when ON).
OmegaVIEW Omega PCbased software used to configure and
install U-Series ultrasonic sensors.
Sourcing Switch* A switch where current flows from the sensor
(sensor power input is the source) to the load when turned
ON (output voltage high when ON).
Switch* An electrical output type that is either ON or OFF. U-
Series ultrasonic sensors® switches are solid state and can
be either sinking or sourcing type.
SYNC* A wired configuration that synchronizes the timing of
two or more sensors to prevent crosstalk or ensure
simultaneous measurements.
SYNC Interval The time interval of measurement of all SYNC
sensors. It equals the number of SYNC phases x
measurement interval.
Target Any object or material that reflects ultrasonic energy
back to the sensor thus allowing the sensor to measure its
distance.
Target Indicator A rear indicator that shows the status of a
detected target and more.
Teach* A Omega product feature that uses a pushbutton to
to store a current target distance measurement into
memory and automatically calibrate the output(s).
Time Delay* A time period triggered by a set of conditions and,
after those conditions persist for the entire period, cause a
secondary event to occur. There are several user-selected
time delay features available.
Ultrasonic A sound wave of a frequency greater than 20,000
Hz, typically above the range of human hearing.
Voltage Output* An analog output type that drives an
electrical voltage proportional to measured distance. U-
Series ultrasonic sensors provide industry standard or
OmegaVIEW customized output ranges.
6
U-Series Ultrasonic Sensors Installation & Operating Instructions
Ultrasonics Overview
Introduction
Omega sensors measure the distance or presence of a
target object by sending a sound wave, above the
range of hearing, at the object and then measuring the
time for the sound echo to return. Knowing the speed
of sound, the sensor can determine the distance of the
object from the transducer element.
Advantages
Non-contact
Measures through the air without touching the
target object, at relatively large distances.
Object Ranging
Object distance is measured rather than just the
presence or proximity.
Distance Proportional Output
The sensor’s outputs are proportional or affected
by the measured target distance.
High Resolution
Precise discrimination of target position.
Unaffected by Target’s Optical
Characteristics
The sensor’s operation is not sensitive to
ambient light levels, the color of the target, or
target is optically transparency/reflectivity.
Sensitive
Detects large and small objects (smaller objects
must be closer)
Typical Applications
Roll Diameter
Measure the size of a roll to
control tension or speed or
determine when full or empty.
Loop Control
Precisely control the position of
material loops, including wires,
tubes and webs.
Web Break
Rapidly detect a broken web in a
printing press or paper machine.
Dimensioning
Determine the size of an object
for information or to determine
its volume or width.
Proximity
Determine the presence of
objects to count or control their
movement.
Sort/Select
Sort or select objects based on
differences in their physical
dimensions.
Level Measurement
Measure or control the level of
liquid or solid materials in tanks
or bins for inventory or
batching….
and many more...
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7
U-Series Ultrasonic Sensors Installation & Operating Instructions
Sensor Overview
U-Series Ultrasonic sensor Product Features
U-Series ultrasonic sensors measure distance without
contact and are designed for tough industrial
environments.
Rapid PC Setup & Control
PC setup gives you control over
all sensor outputs and features.
View, analyze and save sensor
setups for rapid implementation
or cloning.
Pushbutton “Teachable”
Some models utilize a rear TEACH
button to make many common
adjustments. See the Teach Adjust
section. Rear indicators provide
target and output status. The TEACH
button can be disabled for security
using OmegaVIEW. The TEACH button is unavailable
on the U-Series UXLR 50 models and serial-only
models.
Packaging
U-Series ultrasonic sensors models are housed in
rugged 316 stainless steel or durable PVC, with
permanently attached interface cables. Sensors are
potted and sealed to operate in wide humidity and
temperature ranges.
Industry Standard Interfaces
Multiple simultaneous outputs, each with many
OmegaVIEW adjustable features.
Part Numbers
Figure 1 - Part Number Structure
Identification
The U-Series ultrasonic model number and serial
number are printed on the label on the side of the
housing.
8
U-Series Ultrasonic Sensors Installation & Operating Instructions
Startup Tips
New or first-time users can use this condensed guide
for assembly, connection to a PC, and basic sensor
changes from default values before installation
.
The sensor communicates with a Windows PC through
the serial port or USB port. A UAN-Kit from Omega is
recommended for connecting to your PC. It includes a
termination board, power supply and cables.
Install the Software
Download OmegaVIEW and install to your PC. Open
OmegaVIEW Version 3.6.xxx Setup.exe to install. Start
OmegaVIEW.
Connect the Components
The sensor uses colored wires for power,
communication, and outputs. For a basic terminal
board connection, we’ll use 4 of the sensor’s wires:
a. Brown for DC power (DC+)
b. Blue for ground (GND and digital reference)
c. Gray and Yellow for digital communication.
Connect them to the labeled Omega terminal board.
Protect all bare wires from contacting one another
whether connected or not. Ensure the terminal grips
the stripped wire, not its colored jacket.
Plug the data communication cable into the terminal
board RJ jack and your serial port (-232 models), or
into the USB adapter (optional for -232 and required
for -485 models). (For USB adapters see page 14)
Put the DC power supply cable into the jack on the
terminal board, and the supply into an AC source. All
sensors will faintly tick when powered.
Connect to Your Sensor (using serial port)
Start OmegaVIEW.
Menu bar: Sensor >Connect for a dialog box. All new
sensors have network address 1. Use Baud rate 9600.
The serial port is generally identified COM 1. Click
Connect.
OR Connect to Your Sensor (using a USB port)
Start OmegaVIEW.
Menu bar: Sensor >Connect for a dialog box. All new
sensors have network address 1. Use Baud rate 9600.
Select the COM port from the choices or run Com Port
Survey. If COM port is higher than the 12 shown. Edit
>User Preferences…> Connection/ Starting COM port:
and enter new start number. Return to
Connect Sensor
and repeat connection with any available green ports.
For more detail, see “
Connect a Sensor”, page 45.
OmegaVIEW Quick Tour
Once a sensor is connected, it can be viewed in the
SENSOR view. Any changes are done in the
WORKSPACE view and transferred to the sensor.
Basic layout of the main screen:
a. Range and basic setup values, all editable.
b. Workspace and Sensor views
c. File saving and retrieval button
d. Dialog screens for additional setup
e. Analysis tools
f. Output setup and simulated meters (editable)
Setup Basics (advanced description starts page 21)
When sensor is found, answer YES to copy sensor
setup to the Workspace. You are left in Sensor View
showing the sensor reading and its current setup.
To make changes, click the WORKSPACE button.
-To change a Range, Endpoint, or output value, just
click on the value and enter a new one.
-To reverse the analog slope, right-click the High- or
Low-value endpoint.
-To assign outputs, click WIRING and assign black and
white wires as needed. Any changes in Workspace
make it different than the Sensor, shown by the
unequal symbol. Transfer WORKSPACE to SENSOR.
Save the Setup to the Sensor
To move changes to sensor, right click and drag
WORKSPACE to SENSOR. Any changes not sent to the
sensor will be lost when closing OmegaVIEW
.
Save the Setup to the PC.
Right click WORKSPACE and drag it to FILE.
Mounting Tips
Sensor must be mounted perpendicular to the object
to be measured for sound echoes to return. The sensor
cannot sense in a space less than the default Minimum
Range value. The sensor will ignore targets or surfaces
beyond the Max Range value. Avoid echoes from pipe
fittings, welds, and fixed objects with careful
placement. The sensor will return a distance value
from the first surface found within range. Contact
Omega technical support for setup assistance.
9
U-Series Ultrasonic Sensors Installation & Operating Instructions
Specifications
A summary of sensor specifications and features is shown in the following table.
Model Name
Part number, Metric
Part number, NPT
USR03
USR03-30MM-
xxx
USR03-1NPT-xxx
UMR14
UMR14-30MM-xxx
UMR14-1NPT-xxx
Photo
Maximum Range
Deadband (minimum)
3 ft (91cm)
1.75 in (4.4 cm)
14 ft. (4.3 m)
4 in. (10.2 cm)
Optimum Range (small
targets, dry materials,
hot)
1.75 in (4.4 cm) to
24 in (61cm)
4 in. (10.2 cm) to 10 ft (3m)
Outputs, full-featured
models:
Outputs, Serial-only:
NONE
Two outputs: OmegaVIEW selectable as 0-10 VDC (or custom), 4-20 mA (or custom)
sourcing, PNP or NPN switches
Switches: 150 mA, OmegaVIEW configured as PNP (@ input voltage) or NPN
(external 40 VDC max.), setpoint mode or window mode
Voltage: 0-10 or OmegaVIEW configured, 10 mA max (min 15 VDC input for full 10
VDC output)
Current Loop: 4-20 mA or OmegaVIEW configured, 450
max @ >15VDC, 250
max @ 10 VDC
Indicators
Round LED: Power/Target. Square & Rectangular LEDs: Data, switch or analog
status (configurable)
Serial-only models: Round LED Power/Target
Serial interface,
Interface protocol
Modbus slave, ASCII, or SYNCH. RS-232 or RS-485 interface, depends on model. RS-
485 models are 2-wire multi-drop addressable (addresses 1-247). Baud rates 9600 -
115200, none or even parity, 8 bits, one stop bit. OmegaVIEW configured.
Power Input
10-30 VDC @ 55 mA max
DC Current @
typical 24VDC input
+I/O
Typical 45 mA @ 24VDC input +I/O
DC Current, Serial-only
Typical 30 mA @ 24VDC
Typical 35 mA @ 24VDC
Environmental
Ingress: IP-68, NEMA-4X Humidity: 0-100% (avoid heavy condensation) Temp: -40 to
+158 F (-40 to +70 C)
Transducer frequency
240 kHz
120 kHz
10
U-Series Ultrasonic Sensors Installation & Operating Instructions
Model Name
Part number, Metric
Part number, NPT
USR03
USR03-30MM-
xxx
USR03-1NPT-xxx
UMR14
UMR14-30MM-
xxx
UMR14-1NPT-xxx
Transducer, Beamwidth
Rugged piezoelectric,
nominal beam width ~12
degrees @ -3 dB, approx.
conical shaped pattern
Rugged piezoelectric, nominal beam width ~12
degrees @ -3 dB, approx. conical shaped pattern
Measurement rate
Default: 50 msec (20 Hz)
Adjustable from 5 msec to 2.8 hours; faster rates limit max target distance
Performance
Repeatability: Greater of +/-0.03 in. (0.76 mm) or 0.25% of target distance in stable
environment
Accuracy: Better than 0.5% of target distance in stable, homogeneous air
environment; affected by temperature gradients, target echo strength, speed of
sound in air or vapors.
Resolution (analog)
4100 steps over 0-10 VDC and 3279 steps over 0-20 mA (scaled between user-set
distance endpoints)
Resolution (serial data)
0.0034 in. (0.086 mm)
Temperature
-40 to +158F (-40 to +70C) Temperature Compensated by internal sensor or external
Reference Target
Adjustments
Pushbutton Teach (except in serial-only version) or OmegaVIEW software (included)
Cable, full outputs
(embedded)
6.5-ft (2m) 6-wire with shield, tinned ends, PUR. Longer cables available. M12
connector on 18” cable available with extension cables available
Cable, serial-only
6.5-ft (2m) 4-wire with shield, tinned ends, PUR. Longer cables available. M12
connector on 18” cable available with extension cables available
Max serial cable length
RS-232: 50ft (15 m), RS-485: 3937ft (1200m).
Weight
10.3 oz. (0.29 kg)
Housing material,
Mount
316 Stainless, M30x1.5 mm thread OR 316 Stainless, 1-in NPT thread
Dimensions
(Dia x Length)
1.2 in. (30.4mm) x 4.064 in. (103mm)
Default: RangeMIN
RangeMAX
Switch #1 Setpoint
Switch #2 Setpoint
Analog Low Endpoint
Analog High Endpoint
1.75 in. (4.4 cm)
36 in. (91 cm)
12 in. (30.5 cm)
18 in. (46 cm)
1.75 in. (4.4 cm)
24 in. (61 cm)
4 in. (10.2 cm)
168 in. (427 cm)
12 in. (30.5 cm)
24 in. (61 cm)
4 in. (10.2 cm)
120 in. (305 cm)
Options Interface:
Mount method:
Outputs:
RS-232 or RS-485
m30x1.5 or 1-in NPT thread
Two outputs
11
U-Series Ultrasonic Sensors Installation & Operating Instructions
Model Name
Part Number
ULR30
ULR30-15NPT-xxx
UXLR50 (clamped)
UXLR50-CM-xxxx
&
(Rear mounted)
UXLR50-15NPT-RM-xxx
UXLR50 (PVC)
UXLR50-25NPT-FR-xxx
Photo
Maximum Range / Dead
band
30 ft. (9.1m) /
10 in. (25.4cm)
50 Ft. (15.2m) / 12 in. (30.5cm)
Optimum Range (small
targets, dry materials, hot)
20 ft (6.1 m) 33 ft (10.1 m)
Outputs, full-featured
models:
Outputs, Serial-
only:
NONE
Five Outputs: 0-10 VDC, 4-20 mA sourcing, 4-20 mA sinking, two switches
Switches: 150 mA, OmegaVIEW configured as PNP (@ input voltage) or NPN
(external 40 VDC max.)
Voltage: 0-10 or OmegaVIEW configured, 10 mA max (min 15 VDC input for full 10
VDC output)
Current Loop: 4-20 mA or OmegaVIEW configured, 450
max @ >15VDC, 250
max @ 10 VDC
Indicators
Round LED: Power/Target. Square & Rectangular LEDs: Data, switch or analog
status (configurable) UXLR50RM : None
Serial-only models: Round LED Power/Target (except UXLR50RM)
Serial interface,
Interface protocol
Modbus slave, ASCII, or SYNCH. RS-232 or RS-485 interface, depends on model.
RS-485 models are 2-wire multi-drop addressable (addresses 1-247). Baud rates
9600 - 115200, none or even parity, 8 bits, one stop bit. OmegaVIEW configured.
Power Input
10-30 VDC @ 70 mA max
DC Current @
typical 24VDC input +I/O
Typical 45 mA @ 24VDC input +I/O
DC Current, Serial-only
55 mA max, Typical 35 mA @ 24VDC
Environmental
Ingress: IP-68, NEMA-4X Humidity: 0-100% (avoid heavy condensation)
Temp: -40 to +158 F (-40 to +70 C)
Transducer,
Beamwidth
Rugged piezoelectric, nominal beam width ~12 degrees @ -3 dB, approx. conical
shaped pattern
Transducer frequency
75 kHz
50 kHz
50 kHz
Measurement rate
Default: 100 msec
(10 Hz)
Default: 200 msec (5 Hz)
Adjustable from 5 msec to 2.8 hours; affected by filter selections
12
U-Series Ultrasonic Sensors Installation & Operating Instructions
Model Name
Part Number
ULR30
ULR30-15NPT-xxx
UXLR50 (clamped)
UXLR50-CM-
xxxx &
(Rear mounted)
UXLR50-15NPT-RM-xxx
UXLR50 (PVC)
UXLR50-25NPT-FR-xxx
Performance
Repeatability: 0.2% of target distance in stable environment
Accuracy: Better than 0.5% of target distance in stable, homogeneous air
environment; affected by temperature gradients, target echo strength, speed of
sound in air or vapors.
Resolution (analog)
4100 steps over 0-10 VDC and 3279 steps over 0-20 mA (scaled between user-set
distance endpoints)
Resolution (serial data)
0.0068 in. (0.172 mm)
0.0135 in. (0.343mm)
Temperature
-40 to +158F (-40 to +70C) Temperature Compensated by internal sensor or
external Reference Target
Adjustments
Pushbutton Teach
(except on serial-only
models) or OmegaVIEW
software (included)
OmegaVIEW software (included)
Cable, full outputs
(embedded)
6.5-ft (2m) 9-wire with shield, tinned ends, PUR. Longer cables available. M12
connector on 18” cable available with extension cables available
Cable, serial-only
embedded
6.5-ft (2m) 4-wire with shield, tinned ends, PUR. Longer cables available. M12
connector on 18” cable available with extension cables available
Max serial cable length
RS-232: 50ft (15 m), RS-485: 3937ft (1200m).
Weight
22.6 oz. (0.64 kg)
29.9 oz (0.82 kg)
29.1 oz (0.82 kg)
Housing material,
Mount
316 Stainless,
Dual 1.5 in NPT
316 Stainless cylinder,
Clamp to mount
UXLR50RM: rear 1.5 in NPT
PVC,
Dual 2.5 in NPT
Dimensions
(Dia x Length)
1.2 in. (30.4mm) x 4.064
in. (103mm)
50: 2.3 in (59mm) x 4.8 in
(122 mm)
2.5 in (63.5 mm) x 5.0 in
(127 mm)
50RM: 2.5 in (63 mm) x 5.9
in (150mm)
Default: RangeMIN
RangeMAX
Switch #1 Setpoint
Switch #2 Setpoint
Analog Low Endpoint
Analog High Endpoint
10 in. (25.4 cm)
30 ft. (9.1 m)
36 in. (91.4 cm)
48 in. (121.9 cm)
10 in. (25.4 cm)
240 in. (609 cm)
12 in. (30.5 cm)
50 ft. (15.2 m)
36 in. (91.4 cm)
48 in. (121.9 cm)
12 in. (30.5 cm)
400 in. (1016 cm)
12 in. (30.5 cm)
50 ft. (15.2 m)
400 in. (1016 cm)
18 in. (45.7 cm)
400 in. (1016 cm)
12 in. (30.5 m)
Options Interface:
Mount method:
Outputs:
RS-232 or RS-485
1.5 in NPT both ends
Clamp. ( UXLR50RM:
rear thread 1.5-in NPT)
2.5 in NPT either end
Five outputs
13
U-Series Ultrasonic Sensors Installation & Operating Instructions
Mechanical Details
Dimensions are inches (mm). Distance is measured
between the ultrasonic transducer face (the end
opposite the cable) and the target.
Figure 2 - Mechanical Drawing, U-Series ultrasonic
sensors with metric thread
Mechanical Drawing, U-Series ultrasonic sensors with
NPT thread
Figure 3 - Mechanical Drawing, U-Series ultrasonic
sensors 30 and 50
Mounting and Installation
Precautions
Only hand tighten the sensor and never apply a
wrench to the body. When tank mounting to a
domed or round tank, mount the sensor
perpendicular with the target surface. Mount the
sensor directly to the tank ceiling at a flanged
opening. If a riser is added, it must be smooth-
walled and a minimum 3-in diameter. The sensor
beam width is nominally 12-14 degrees at the -3dB
boundary, however surfaces outside that can return
echoes as well. Round off the lower ID of the riser to
prevent detection. Provide shade for outside
installations to prevent erroneous measurements
due to artificial heating of the sensor when
temperature compensation is active. Mount the
sensor away from the inner walls of tanks. Seams
and fixtures can interfere with measurements.
Orientation
Orient the sensor perpendicular to the target object
for best results as shown in Figure 4.
Figure 4 - Sensor Orientation
Ultrasound energy must return to the sensor or the
sensor will not detect a target. Curved or spherical
objects generally reflect a portion of the energy
back to the sensor but with lower reflected energy.
A flat surface, however, is detectable at a greater
distance. Foreground interfering objects can be
ignored by setting the Range MIN value in
OmegaVIEW.
Maintenance & Cleaning
Dust accumulation on the sensor face can be
cleaned by blowing pressurized air across the sensor
face. Dust does not affect performance unless it
builds on the transducer. Positioning the sensor
DIRECTION
OF MEASUREMENT
ULR30:
UXLR50:
UXLR50 (PVC):
1.5 in. NPT thread (both ends)
Not threaded
2- ½ in. NPT thread (both ends)
Diameter
ULR30:
UXLR50:
UXLR50 (PVC):
1.88 (48)
2.31 (59)
2.75 (70)
ULR30:
UXLR50:
UXLR50 (PVC):
4.3 (109)
4.8 (121)
5.0 (127)
14
U-Series Ultrasonic Sensors Installation & Operating Instructions
facing downward rather than upward will minimize
material accumulation in some applications. The
sensor face can be cleaned with isopropyl alcohol or
window cleaner. DO NOT use solvents such as MEK
or acetone on U-Series ultrasonic sensors.
Metric U-Series ultrasonic sensors 3 and 14
These sensors are shipped with two 30mm stainless
nuts. The sensor mounts through a 1.18-in (31mm)
hole in a mounting plate as shown in Figure 5. This
hole may be a component of the user equipment or
a Omega bracket and must be rigid for best
performance. Position the sensor in the hole and
fasten it to the plate with the two nuts provided. The
sensor position can be altered a couple of inches
depending on the nut positions. If accurate close-
range distance is important, position the sensor so
the closest target is always beyond the dead band
(also see
Range MIN on page 34).
Figure 5 - Mounting
NPT U-Series ultrasonic sensors 3 and 14
These sensors have 1-in NPT male threads at the
front end to install in a 1-in NPT threaded hole,
flange or 90-degree adapter. The sensor can also
be held by clamp.
Mounting Hardware & Accessories
Metric U-Series ultrasonic sensors 3 and 14
series
MB30-SS90
Stainless steel, 90-
degree mounting,
non-adjustable angle
NUT30-SS316
One pair (SS316). stainless steel
m30x1.5 nuts
(Included with new sensor)
Software and Interconnection
The following accessories are available.
Rear Features
Figure 6 - Sensor Rear Features. There are four control
features available:
The
TEACH button can be used to make sensor
adjustments on USR03, 14, and 30 series sensors (or
can be disabled using OmegaVIEW).
Teach features are described on page 50.
The
target indicator (round) shows the target
status and other conditions. It is always ON when
power is applied and will be either RED or GREEN.
The
square status indicator and rectangular
status indicator
show sensor outputs status as
described in Target Indicator on page 16. Status
Indicator assignments can be changed using
OmegaVIEW. The factory defaults by model are:
USR03 and 14:
Square = Analog, Rectangular = data TX
U-Series 30:
Square = Switch #1, Rectangular = Switch #2
U-Series 50:
Square = Switch #1, Rectangular = Switch #2
U-Series 50 with rear thread:
No pushbutton or LEDs
U-Series 50 in PVC:
Square = data RX, Rectangular = data TX
No pushbutton
Cable
TEACH
button
Square Indicator
(green)
Rectangular
Indicator
(green)
Target Indicator (red or green)
Configuration and Communication
OmegaVIEW
Software
Configure, test and clone sensors.
Compatible with all U-Series
ultrasonic sensor models.
Download free from
www.Omega.com
KIT-USB-232
KIT-USB-485
PC Interface kits. Choose RS-232
or RS-485 to match sensor.
Converter, terminal block, power
supply, data cable included.
15
U-Series Ultrasonic Sensors Installation & Operating Instructions
Figure 7 - Target Indicator Functions
Target Indicator
As shown in the figure above, the
target indicator is
a bi-color LED and provides status for the following
purposes:
Power ON
Target status & near MIN
Data communications
“No SYNC” warning
Unlocked status
TEACH feedback (U-Series 3,14, and 30)
Power ON Status
When sensor power is ON the target indicator will be
RED or GREEN. It may also be flashing at a slow or
fast rate under other conditions described below
and shown in figure 7.
Target Status & Near MIN
This is the primary operational purpose of the target
indicator
. The target status displays as follows:
GREEN is a normal indication, indicating a
target is detected within the sensor’s
operating range
RED indicates no target is detected within
the sensor’s
operating range.
FAST FLASH GREEN warns that the target is
within 0.25 in. (6.4 mm) of
range MIN.
Unlocked Status (U-Series 3, 14, and 30)
The sensor must be unlocked for TEACH adjustment.
When unlocked the
target indicator will continue to
indicate target status (Red or Green) but will blink
slowly on and off to signify TEACH readiness. ALT-
Teach status is indicated by an alternating “double
blink”. All filters are turned OFF when unlocked.
TEACH and ALT-Teach Feedback (U-Series 3,
14, and 30)
When using the TEACH features to make sensor
adjustments the
Target Status Indicator will SLOW
BLINK RED (unless the TEACH functions are disabled
using OmegaVIEW and the sensor is not a SYNC
master or slave) as operator feedback while the
TEACH button is pressed. The user must count these
flashes, then release the
TEACH button after a
specific number of flashes to complete a particular
TEACH feature. ALT-Teach feedback is indicated by
a slow “double blink”.
“No SYNC” Warning
If the SYNC feature is used (see page 33) and a slave
sensor does not detect a master SYNC input, the
slave will stop measuring and the
Target Status
indicator will slowly alternate between RED and
GREEN until SYNC is restored (or the TEACH button
is used on certain models).
16
U-Series Ultrasonic Sensors Installation & Operating Instructions
Output Status Indicators
Some U-Series ultrasonic sensors have two output
status indicators at the rear of the sensor. These
indicators can each show status of the analog,
switch or serial data interfaces, or can be turned OFF.
Indicators have default assignments and can be
reassigned using OmegaVIEW. Indicator operations
are shown in figure 8
In a typical installation the analog output is
operating within a user-calibrated range and the
normal indication is a continuously ON indicator. An
OFF or blinking indicator could indicate a potential
problem because the sensor is detecting a target
outside the calibrated (expected) distance range.
Default Indicator Assignments
U-Series 3 and 14:
Square = Analog, Rectangular = data TX
U-Series 30 and 50:
Square = Switch #1, Rectangular = Switch
#2
U-Series 50 with Rear Mount:
No indicators
U-Series 50 in PVC:
Square = data RX, Rectangular = data TX
Square Green Indicator -
The square status indicator can be configured using
OmegaVIEW to any of the status options (analog,
switch, serial data receive, serial data transmit,
Reference Target, or OFF). If selected for a switch it
displays the status for Switch #1. The #1 output
must be configured to be a switch in order to choose
Switch as the indicator. Similarly, Reference Target
temperature compensation must be chosen before
assigning Reference Target to the square indicator.
Rectangular Green Indicator -
The rectangular status indicator can be configured
using OmegaVIEW to any of the status options
(analog, switch, serial data receive, serial data
transmit, Reference Target, or OFF). If selected for a
switch it displays the status for Switch #2. The #2
output must be configured to be a switch in order
to choose Switch as the indicator. Similarly,
Reference Target temperature compensation must
be chosen before assigning Reference Target to the
square indicator.
Switch Status
When a status indicator is selected as a solid-state
switch, it operates as follows:
Indicator ON if
switch is ON
Indicator OFF if
switch is OFF
Indicator blinks on and off continuously
while the
switch is in a safe shutdown mode
due to over current or temperature.
The
Output Selection for a Switch may be either
sinking or sourcing but the status indication is the
same. A
switch is considered ON when it is
conducting current (see page 23).
Analog Status
When a status indicator is selected for analog status
it shows the current status of the analog output(s).
The analog status is the same for voltage and
current loop outputs since they share common
endpoint distances. The analog status indicator:
is ON if the target distance is between the
two analog
endpoint distances over which
the analog output is spanned, or
is OFF if the target distance is equal to or
outside the low value endpoint distance.
The sensor output will be 0 VDC, 4 mA or
the OmegaVIEW adjusted low analog
output value, or
blinks ON-OFF if the target distance is
equal to or outside the high value
endpoint
distance. The sensor output will be 5/10
VDC, 20 mA or the OmegaVIEW adjusted
high analog output value.
Serial Data Status
In systems using serial data communications a
status indicator(s) can be configured using
OmegaVIEW to either (a) RX flash upon receiving
any data (regardless of validity or baud rate), or (b)
TX flash upon transmitting data (responding to a
valid command). A TX indicator will also flash each
time data is transmitted in the ASCII streaming
mode.
Reference Target Status
Either status indicator can be configured to light
when the reference target is available and go out if
it is lost. Available only in Reference Target
temperature compensation mode.
17
U-Series Ultrasonic Sensors Installation & Operating Instructions
Figure 8 - Output Status Indicator Operations
Output Status Indicators ( &): Analog,
switch, reference target, and/or data status is shown
on the square indicator () and/or rectangular
indicator (
). Default assignments may be changed
using OmegaVIEW. Analog status appears for
current loop or voltage outputs, and Switch Status
for sinking or sourcing switch outputs. Reference
target is to monitor for that type of temperature
compensation.
Analog Status: The above two analog examples
show an increasing analog slope (top) and
decreasing
analog slope (bottom). An increasing
slope means the output value increases
proportional to the measured distance and vice
versa. A fast flashing analog indicator means the
analog output is at the high
endpoint voltage or
current output value (10 VDC, 5 VDC, 20 mA, or user
value entered in OmegaVIEW). An OFF analog
indicator means the analog output is at the low
endpoint voltage or current output value (0 VDC, 4
mA, or user value entered in OmegaVIEW). The
analog status is solid green when the measurement
is within the normal (calibrated) range.
Switch Status: The indicator will light green when
the associated switch is ON. An ON-switch means is
it conducting current, and an OFF
switch not. A
sinking switch output that is ON will have an output
value near ground (0 volts). A
sourcing switch output
that is ON will have an output value near the power
supply voltage. The three switch examples shown
above demonstrate a
switch that is ON at distances
closer than the
setpoint (ON closer), farther than the
setpoint (ON Farther) and a FAULT condition
(overload or over temperature). During a FAULT the
switch is turned OFF. Normal switch operation
restores automatically when the fault is removed
.
Analog and Switch Outputs if No Target: If no
target is detected (target indicator is red) the analog
output will hold the last value and the switch
outputs will turn off after 1 second. These responses
can be changed in OmegaVIEW by changing the
“No Target Voltage and “No Target Current”
selections.
Data Status: The status indicator will flicker ON
when the sensor receives (RX status) or responds (TX
status) to a Modbus command over the serial data
interface.
18
U-Series Ultrasonic Sensors Installation & Operating Instructions
INTERFACES
Wires Identification
U-Series ultrasonic sensors have an attached, embedded 6.5ft cable as standard. It is a shielded 4-wire, 6-wire or
9-wire cables with the following wire assignments:
Wire
Color
Wire Function
U-Series 3 and 14
(6-wire cable)
U-Series 30 and 50 Series
(9-wire cable)
Brown
+DC input voltage (Power Input)
Blue
-DC input and signal common (Ground)
Gray (data #1)
(note 2)
RS-232 models: RS-232 out
RS-485 models: RS-485 -
Yellow (data #2)
(note 2)
RS-232 models: RS-232 in
RS-485 models: RS-485 +
Silver
Cable shield (bare stranded wire), unterminated at sensor end
Black
Output #1 (note 1)
4-20 mA sourcing loop (note 3)
OR Sinking Switch #1
OR Sourcing Switch #1
or OFF
Sinking Switch #1 (note 3)
OR
Sourcing Switch #1
White
Output #2 (note 1)
0-10 VDC (note 3)
OR Sinking Switch #2
OR Sourcing Switch #2
OR OFF
Sinking Switch #2 (note 3)
OR
Sourcing Switch #2
Green
These wires are not on
U-Series 3 or 14 Sensors
Current sourcing output
Orange
Current sinking output
Violet
Voltage output
Notes:
(1) Output selection for the black and white wires of U-Series 3 or 14 sensors are made via OmegaVIEW (page 46)
(2) Output determined by sensor model. The gray and yellow wires are also used for synchronization (page33)
(3) Factory default selections (can be changed using OmegaVIEW)
Table 1 - Wire Assignments
Tinned ends are standard. Connectorized cables are also available, as are other cable lengths.
19
U-Series Ultrasonic Sensors Installation & Operating Instructions
Ground (blue wire)
The ground wire is common to both the power
supply and the output circuits.
Cable Shield (bare wire)
The cable shield is not terminated at the sensor. This
wire should be terminated to equipment ground
near the user equipment, preferably to a single point
ground for all equipment. This is important if the
cable is lengthened and/or routed near electrically
noisy wiring or equipment.
Power Input (brown wire)
Connect a DC power supply to the DC+ (Brown) and
GND (Blue) wires. These colors conform to EU
standards. Reversing the power connections will not
damage the sensor. A power supply voltage
between 15-30 VDC is recommended. A +24 VDC
supply is a commonly used standard. Target
sensitivity and the maximum voltage output value is
reduced at power supply voltages below 15 VDC.
When power is applied, the
rear LED target indicator
will light and the sensor operates as described on
page 31.
U-Series 3 &14 Outputs (black & white)
Each output can be either an analog, a switch, or
turned OFF. Analog interfaces are described on page
20 and switch interfaces on page 23. Output
selections require OmegaVIEW (see page 46).
U-Series 30 and 50 Outputs
These models provide simultaneous 0-10 VDC, 4-20
mA sourcing, 4-20 mA sinking, and two switch
outputs. The default switch outputs are sinking
(NPN type) but may be changed to sourcing (PNP
type) or turned OFF using OmegaVIEW.
Data Connections (gray & yellow)
Serial data interfaces are described on page 26. They
are used for:
OmegaVIEW PC configuration (page 45)
Synchronization (page 33)
User communications between the sensor
and an external data communications
device
All U-Series ultrasonic serial RS-232 models can
connect to a PC USB port for OmegaVIEW
configuration as shown in figure 9 with KIT-USB-
232. See Software and Interconnection (pg 14).
Figure 9 - RS-232 PC COM Port Connections
RS-485 models require the RS-485 interface kit, KIT-
USB-485 for USB port connection. See Software and
Interconnection (pg 14).
U-Series 3 &14 Output Selection
The U-Series 3 &14 series sensors have two user-
selected outputs. These outputs connect via the
black and white wires of the sensor cable.
The factory default selections are a 4-20 mA current
loop connected to the black wire and a 0-10 VDC
output to the white wire. Using OmegaVIEW, one or
both of these analog outputs can be changed to
either a sinking (NPN) or sourcing (PNP) switch or
can be turned off. If turned off the associated rear
status indicator is also turned off.
Refer to Outputs & Indicators on page 46 for
information on using OmegaVIEW.
Make the output selections before
connecting the sensor to equipment!
Output selections are not affected by a
TEACH 17 reset.
NOTE: Output selection is NOT REQUIRED for
U-Series 30 and 50 series sensors. All outputs
are independently wired and simultaneously
run.
Sensor
User Equipment
(RS-232 interface)
Single point ground
optional (recommended)
DC+
(Brown)
Blue
Cable Shield
RX
GND
DB9* DB25*
+
Power Supply
(24 VDC typical)
-
2
5
* Typical personal computer connections for
9 and 25-pin serial COM connectors
Yellow
RS-232
Wiring
Gray
TX
3
3
7
2
20
U-Series Ultrasonic Sensors Installation & Operating Instructions
Analog Outputs
U-Series 3 &14 Analog Outputs
The above sensors have these analog outputs:
Voltage and sourcing current loop outputs
Output selection is accomplished using
OmegaVIEW (page 46). Defaults are I and
V.
U-Series 30, and 50 Analog Outputs
These sensors have three analog outputs - voltage,
sourcing loop and sinking loop. They are
simultaneously available on separate wires and do
not require selection using OmegaVIEW.
Analog Status Indication
Rear status indicators show whether the analog
output is at the high value, low value or between
those values as shown in
Figure 8 - Output Status Indicator
Operations.
Voltage Output
This figure shows a voltage output connection:
Figure 10 - Voltage Output Wiring
The default voltage output is a 0 to 10-volt DC signal
proportional to the measured distance between the
endpoints set by the user. The voltage range can be
changed to 0-5 VDC using the TEACH 30 or can be
set to a custom output range with values between 0
and 10 volts using OmegaVIEW (see i & j below). The
analog slope can increase or decrease with distance,
but all analog outputs must have the same slope.
The voltage is measured relative to GND (BLUE wire).
The 0 and 10-volt
endpoint distances affect both
voltage and current loop outputs and can be set
anywhere in the sensor’s
operating range using the
TEACH button or OmegaVIEW.
Sourcing Current Loop Output
This figure shows a sourcing current loop connection:
Figure 11 - Sourcing Current Loop Wiring
The default sourcing loop output is a 4 to 20 mA
signal proportional to the measured distance
between two endpoints set by the user. The current
range can be set to any values between 0 and 20 mA
using OmegaVIEW (see d & e in Figure 13). The
slope can increase or decrease with distance, but all
analog outputs must have the same slope. In a
4-20 mA sourcing output wire
USR03, UMR14 = BLACK wire
ULR30, UXLR50 and
UXLR50(PVC) = GREEN wire
Voltage output wire
USR03, UMR14 = WHITE wire
ULR30, UXLR50 and
UXLR50(PVC) = VIOLET wire
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Omega UXLR50-Series Owner's manual

Category
Measuring, testing & control
Type
Owner's manual
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